CVE-2020-19952 json
Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, a…
published 2023-08-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-11848
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, allows remote attackers to execute arbirary code via crafted payload or opening malicious .md file.
Patch / fix
- jbt live_(github-flavored)_markdown_editor 2019-10-27
- github.com/jbt/markdown-editor@228f194 commit
- github.com/jbt/markdown-editor#110 pull request
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/jbt/markdown-editor/issues/106 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/jbt/markdown-editor/commit/228f1947a5242a6fbe2995d72d21b7e5f5178f35
patch
-
github.com
/jbt/markdown-editor/pull/110
patch
-
github.com
/jbt/markdown-editor/issues/106
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2020-19952
- NVD CVE-2020-19952
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.